Circuit assembly for providing high-frequency energy, and system for generating an electric discharge

• Main Author: Diener, Christof-Herbert
• Format: Patent
• Language: English
• Published: 03.03.2020
• Subjects: APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC,OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWERSUPPLY SYSTEMS; BASIC ELECTRIC ELEMENTS; CONTROL OR REGULATION THEREOF; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUTPOWER; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS; ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR; ELECTRICITY; GENERATION; PLASMA TECHNIQUE; PRODUCTION OF ACCELERATED ELECTRICALLY-CHARGED PARTICLES OR OFNEUTRONS; PRODUCTION OR ACCELERATION OF NEUTRAL MOLECULAR OR ATOMICBEAMS

A circuit assembly (12) includes a direct voltage supply (13) providing a direct voltage (Ucc), a step-up converter circuit (16), and a control unit (17). The step-up converter circuit (16) contains a series circuit consisting of an inductor (18) and a controllable switch (19), wherein the inductor (18) is connected between a pole (21) of the direct voltage supply (13) and a first electrode (D) of the switch (19). The control unit (17) controls the switch (19) with a high-frequency to generate high-frequency energy with a periodic pulse-like output voltage (UDS) at the first electrode (D) of the switch (19), said output voltage having a peak value larger than the value of the direct voltage (Ucc). The high-frequency energy is directly output without transformation at an output connection (24) designed to directly connect to an electrode (8) of the vacuum chamber (2).